26 P6.SP.JC.17053161
Level 3
The figure shows a rectangular tank measuring 55 cm by 22 cm by 24 cm. It was 13 filled with water at first. Dylan turned on a tap and let water flow into the tank at a rate of 1.36ℓ per minute. After 15 minutes, he turned off the tap. How much water had overflowed? (Express the answer in ℓ.)
3 m
Rate 1 object Unit conversion Volume Volume of cuboid Filling tank Fraction of a whole
27 P6.SP.JC.17053054
Level 3
Shemy placed three empty tanks side by side. The smallest tank has a crack at its side and the base area of each tank is 16 cm2. After she turned on the tap for 64 minutes, the height of the water in the smallest tank became 6 cm although 0.5 mℓ of water is leaking out of the crack per minute. Find the rate of flow of water from the tap. Give the answer in mℓ/min.
3 m
Rate 1 object Volume Volume of cuboid Height of cuboid Filling tank Volume transfer
28 P6.SP.JC.19010102
Level 3
5 tailors can sew 10 shirts in 10 hours on average. How long will 50 tailors take to sew 50 shirts on average?
3 m
Rate 1 object Duration Units time
29 P6.DA.JC.23030804
Level 2
The graph shows the temperature of water in a pot from 08 00 to 08 30.
  1. For how many minutes was the temperature of the water 50°C and below?
  2. During which two 5-minute intervals did the temperature of water decrease at the same rate?
  3. What was the change in temperature per minute from 08 25 to 08 30? Give your answer in °C per minute.
3 m
Line graph 24-h clock Rate 1 object Equal stage Units method
30 P5.SP.JM.17083109
Level 3
John can paint a house in 8 days. Alex can paint the same house in 10 days. How many days would they take to paint the house together?
4 m
Rate 1 object Duration Fraction of a whole F 4 operations

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